Claude Opus 4.8 vs Grok 4.7
Claude Opus 4.8 
Grok 4.7 Verdict
- Grok 4.7 (high) leads on quality: 65.8 vs 64.1.
- Claude Opus 4.8 (max) is stronger in agents & tools, coding, instruction following, long context, maths.
- Grok 4.7 (high) is stronger in composite, knowledge, reasoning.
- Grok 4.7 (high) is 3.3× cheaper ($3.00 vs $10.00 per 1M blended).
| Metric | Claude Opus 4.8 (max) | Grok 4.7 (high) |
|---|---|---|
| BenchLeader Index | 64.1 | 65.8 |
| Agents & tools score | 58.8 | – |
| Coding score | 62.5 | – |
| Composite score | 68.5 | 87.5 |
| Instruction following score | 62.0 | – |
| Knowledge score | 69.2 | 72.6 |
| Long context score | 65.2 | 64.8 |
| Maths score | 69.6 | – |
| Reasoning score | 72.0 | 76.4 |
| Blended price $/M | $10.00 | $3.00 |
| Output speed | 59 tok/s | 55 tok/s |
| Time to first answer | 34.6 s | 1.4 s |
| Context window | 1M | 500k |
| GPQA Diamond | 91.0% | – |
| FrontierMath Tiers 1–3 | 80.0% | – |
| FrontierMath Tier 4 | 56.1% | – |
| OTIS Mock AIME | 98.3% | – |
| SimpleQA Verified | 53.0% | – |
| Terminal-Bench | 23.6% | – |
| OSWorld-Verified 2.0 | 20.6% | – |
| SciCode | 53.5% | – |
| APEX-Agents | 42.5% | – |
| ProofBench | 69.0% | – |
| LiveBench | 76.2% | – |
| LiveBench Reasoning | 89.2% | – |
| LiveBench Coding | 81.8% | – |
| LiveBench Agentic Coding | 50.5% | – |
| LiveBench Mathematics | 94.3% | – |
| LiveBench Data Analysis | 66.0% | – |
| LiveBench Language | 79.7% | – |
| LiveBench Instruction Following | 72.0% | – |
| AA Intelligence Index | 41.8 | 46.3 |
| IFBench | 62.2% | – |
| AA-LCR | 77.7% | 77.0% |
| AA-Omniscience | 28.8 | 30.9 |
| Terminal-Bench Hard | 58.3% | – |
| GPQA Diamond (AA) | 92.0% | – |
| Humanity's Last Exam (AA) | 48.7% | 42.3% |
| SciCode (AA) | 54.4% | 57.8% |
| τ²-Bench Telecom (AA) | 94.4% | – |
| LegalBench | – | 85.1% |
| AIME 2026 | 100.0% | – |
| HMMT February 2026 | 95.5% | – |
| MathArena Apex | 81.3% | – |
| MCP Atlas | 82.2% | – |
| ARC-AGI-1 | 92.5% | – |
| CritPt | 20.9% | 18.0% |
| GDPval (AA) | 46.9% | 59.7% |
| τ²-Bench Banking (AA) | 34.2% | – |
| Analyst Agent (AA) | 45.0% | – |
| Code Migration | – | 34.7% |
| Excel Modeling Benchmark | – | 54.9% |
| Harvey's Legal Agent Benchmark | – | 19.6% |
| Legal Research Bench | – | 39.9% |
| MedCode | – | 48.7% |
| MedScribe | – | 87.2% |
| ProgramBench | – | 0.0% |
| Public Benefits Bench | – | 68.5% |
| SAGE | – | 31.0% |
| DrugDiscoveryBench | 46.8% | – |
| FORTRESS | 18.2% | – |
| Chess Puzzles | 34.0% | – |
| EBR-bench | 28.6% | – |
| Mystery Game Puzzles | 36.0% | – |
| PostTrainBench | 32.9% | – |
| DeepSWE | 59.0% | – |
| LMCA | 57.5% | – |
| DTBench | 94.9% | – |
| CursorBench | 62.3% | – |
| Vending-Bench 2 | 2992.3 | – |
| GDP.pdf | 24.0% | – |
Data as of 2026-09-21. Best configuration of each model; every score links to its source on the model pages.
Claude Opus 4.8 vs Grok 4.7: questions
- Is Claude Opus 4.8 better than Grok 4.7?
- Grok 4.7 (high) leads on quality: 65.8 vs 64.1. The BenchLeader Index combines every independent quality benchmark; Grok 4.7 (high) is ahead overall as of 2026-09-21, but check the category scores for your use.
- Which is cheaper, Claude Opus 4.8 or Grok 4.7?
- Grok 4.7 is cheaper: $3.00 against $10.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Claude Opus 4.8 or Grok 4.7?
- Claude Opus 4.8 streams faster: 59 against 55 output tokens per second.
- Which has the larger context window?
- Claude Opus 4.8 accepts more context: 1M against 500k tokens.